 
			 
			MCQOPTIONS
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				| 1. | Calculation the elevation difference if the vertical distance is 14.89m, instrument height is 9.2m, ground is at 2.8m. | 
| A. | 21.29 m | 
| B. | 12.29 m | 
| C. | 21.92 m | 
| D. | 41.29 m | 
| Answer» B. 12.29 m | |